James Gillespie Blaine (January 31, 1830 – January 27, 1893) was an American statesman and Republican politician who represented Maine in the United States House of Representatives from 1863 to 1876, serving as Speaker of the U.S. House of Representatives from 1869 to 1875, and then in the United States Senate from 1876 to 1881.
Blaine twice served as Secretary of State, first in 1881 under President James A. Garfield and Chester A. Arthur, and then from 1889–1892 under President Benjamin Harrison. He is one of only two U.S. Secretaries of State to hold the position under three separate presidents, the other being Daniel Webster. Blaine unsuccessfully sought the Republican nomination for President in 1876 and 1880 before being nominated in 1884. In the 1884 general election, he was narrowly defeated by Democratic nominee Grover Cleveland. Blaine was one of the late 19th century's leading Republicans and a champion of the party's moderate reformist faction, later known as the "Half-Breeds".